Erysimum plant named ‘Jenny Brook’

ABSTRACT

A new  Erysimum  plant particularly distinguished by flowers which change color through the season starting out as purple-mauve changing to peach and by its upright, long flower stems that are held above green linear foliage is disclosed.

Genus and species: Erysimum linifolium

Variety denomination: ‘Jenny Brook’.

BACKGROUND OF THE NEW PLANT

The present invention comprises a new and distinct cultivar of Erysimum,botanically known as Erysimum linifolium and hereinafter referred to bythe cultivar name ‘Jenny Brook’. The new cultivar was discovered in acultivated garden in Cerdigion, Wales in 2001. Both the male and femaleparents are unknown individual plants of Erysimum. ‘Jenny Brook’ wasfirst propagated in 2001 in Cerdigion, Wales.

The new cultivar was discovered in Cerdigion, Wales in 2001 and has beenasexually reproduced repeatedly by vegetative cuttings over a 7-yearperiod in Cerdigion, Wales and Lancaster, Pa. The present invention hasbeen found to retain its distinctive characteristics through successiveasexual propagations.

Plant Breeder's Rights for this cultivar were applied for in theEuropean Union on Apr. 19, 2006. ‘Jenny Brook’ has not been madepublicly available more than one year prior to filing of thisapplication.

SUMMARY OF THE INVENTION

The following are the most outstanding and distinguishingcharacteristics of this new cultivar when grown under normalhorticultural practices in Cerdigion, Wales and Lancaster, Pa.

-   -   1. Flowers change color through the season starting out as        purple-mauve changing to peach; and    -   2. Upright, long flower stems that are held above green linear        foliage.

DESCRIPTION OF THE PHOTOGRAPH

This new Erysimum plant is illustrated by the accompanying photographwhich shows a close-up of the inflorescence; the colors shown are astrue as can be reasonably obtained by conventional photographicprocedures.

DESCRIPTION OF THE NEW CULTIVAR

The following detailed descriptions set forth the distinctivecharacteristics of ‘Jenny Brook’. The data which define thesecharacteristics were collected from asexual reproductions carried out inLancaster, Pa. The plant history was taken on one-year-old plants grownoutdoors. Color readings were taken outdoors under natural light. Colorreferences primarily to the R.H.S. Colour Chart of The RoyalHorticultural Society of London (R.H.S.) (2001 edition).

DESCRIPTION OF THE NEW PLANT

-   Classification:    -   -   Family.—Brassicaceae.        -   Botanical.—Erysimum linifolium.        -   Common name.—Perennial wallflower.-   Parentage:    -   -   Female parent.—Unknown.        -   Male parent.—Unknown.-   Plant:    -   -   Type.—Perennial.        -   Habit.—Woody base, branching, numerous linear shaped leaves.        -   Height (from top of soil).—60.0 cm.        -   Width (horizontal plant diameter).—60.0 cm.        -   Propagation.—Tip cuttings, tissue culture.        -   Time to produce a finished flowering plant.—8 weeks.        -   Time to initiate and develop roots.—10 days.        -   Root description.—White, fibrous.-   Stems:    -   -   Average number.—8.        -   Length of stems/branches (from the base of the stem to the            tip).—20.0 cm.        -   Internode length.—0.5 cm.        -   Diameter of branches (from midpoint).—0.3 cm.        -   Stem color.—RHS 137A (Green).        -   Anthocyanin.—RHS 59A to RHS 59B (Red-Purple).        -   Texture.—Rough.-   Leaves:    -   -   Arrangement.—Alternate.        -   Size.—Length: 5.0 cm to 11.0 cm. Width: 0.5 cm.        -   Shape.—Linear.        -   Apex.—Acute.        -   Base.—Cuneate.        -   Margin.—Undulate.        -   Texture.—Upper surface: Rough. Lower surface: Smooth.        -   Immature leaf.—Color: Upper surface: RHS 137B (Green). Lower            surface: RHS 137C (Green).        -   Mature leaf.—Color: Upper surface: RHS 137A (Green). Lower            surface: RHS 137D (Green).        -   Venation pattern.—Pinnate, very faint.        -   Venation color.—Upper surface: RHS 137A (Green). Lower            surface: RHS 137D (Green).        -   Petioles.—Absent.-   Flower bud:    -   -   Shape.—Elliptic.        -   Size.—Length: 0.5 cm. Diameter: 0.3 cm.        -   Color at tight bud.—RHS 59A (Red-Purple).        -   Texture.—Smooth.-   Inflorescence:    -   -   Blooming habit (flowering season).—May to July and August.        -   Inflorescence type.—Raceme.        -   Average number of flowering stems.—20.        -   Average number of flowers and buds per stem.—30.        -   Lastingness of individual blooms on the plant.—10 days.        -   Fragrance.—Slight.        -   lnflorescence length.—30.0 cm to 40.0 cm.        -   Inflorescence diameter.—5.0 cm.-   Flowers:    -   -   Type.—Single flower, four petals, borne in dense elongating            corymb like racemes.        -   Shape.—Cruciform.        -   Size.—Length or depth: 2.0 cm. Width or diameter: 3.0 cm.        -   Petals.—Number per flower: 4. Length: 1.0 cm. Width: 1.0 cm.            Shape: Obocordate. Apex: Retuse. Base: Attenuate. Margin:            Entire. Texture: Upper surface: Smooth. Lower surface:            Smooth. Color: Upper surface: RHS 35C (Orange-Red). Lower            surface: RHS 35D (Orange-Red).        -   Calyx arrangement. —Tubular, deeply cut to form 4 segments.        -   Sepals.—Quantity per flower: 4. Length: 1.0 cm. Width:            0.3 cm. Shape: Tubular. Apex: Acute. Base: Cuneate. Margin:            Entire. Texture: Upper surface: Slightly rough. Lower            surface: Smooth. Color: Upper surface: RHS 59A (Red-Purple).            Lower surface: RHS 59D (Red-Purple).-   Peduncles:    -   -   Length.—30.0 cm to 40.0 cm.        -   Diameter.—0.5 cm.        -   Aspect.—Erect.        -   Texture.—Rough.        -   Color.—RHS 137A (Green).-   Pedicels:    -   -   Length.—1.0 cm.        -   Diameter.—0.2 cm.        -   Texture.—Slightly rough.        -   Color.—RHS 137A (Green).-   Reproductive organs:    -   -   Stamens.—Quantity per flower: 5. Filament length: 0.8 cm.            Filament diameter: 0.1 cm. Anthers: Shape: Ligulate Length:            0.3 cm. Diameter: 0.1 cm. Color: RHS 152A (Yellow-Green).            Pollen amount: Very sparse. Pollen color: RHS 153A            (Yellow-Green).        -   Pistils.—Number per flower: 1. Length: 1.0 cm. Diameter:            0.1 cm. Stigma: Length: 0.01 cm. Diameter: 0.1 cm. Shape:            Rounded. Color: RHS 150C (Yellow-Green). Style: Length:            0.9 cm. Diameter: 0.1 cm. Shape: Tubular. Color: RHS 150C            (Yellow-Green).-   Fruit and seed set: Has not been observed.-   Disease and insect resistance: Typical of Erysimum.

COMPARISON WITH COMMERCIAL CULTIVARS

‘Jenny Brook’ differs from the commercial cultivar ‘Bowles Mauve’(unpatented) in that ‘Jenny Brook’ has flowers that change color throughthe flowering season from purple-mauve to peach, while ‘Bowles Mauve’has flowers that are lilac and pink.

1. A new and distinct cultivar of Erysimum plant as shown and describedherein.